The Au Sable River in Michigan runs approximately 140 miles (225 km) through the northern Lower Peninsula, through the towns of Grayling and Mio, and enters Lake Huron at Oscoda. It is considered one of the best brown trout fisheries east of the Rocky Mountains.

Skagit lines were originally developed by the steelhead rats of the Pacific northwest to get flies in front of fish regardless of environment. These short, high power heads have the ability to make a cast in tight confined spaces, which often means the difference between success and failure. As with any line, the shorter the head, the more critical the weight.